2 * QEMU HP-PARISC PCI support functions.
6 #include "qemu/osdep.h"
9 #include "sysemu/sysemu.h"
13 /* Fallback for unassigned PCI I/O operations. Avoids MCHK. */
15 static uint64_t ignore_read(void *opaque
, hwaddr addr
, unsigned size
)
20 static void ignore_write(void *opaque
, hwaddr addr
, uint64_t v
, unsigned size
)
24 const MemoryRegionOps hppa_pci_ignore_ops
= {
26 .write
= ignore_write
,
27 .endianness
= DEVICE_BIG_ENDIAN
,
39 /* PCI config space reads/writes, to byte-word addressable memory. */
40 static uint64_t bw_conf1_read(void *opaque
, hwaddr addr
,
44 return pci_data_read(b
, addr
, size
);
47 static void bw_conf1_write(void *opaque
, hwaddr addr
,
48 uint64_t val
, unsigned size
)
51 pci_data_write(b
, addr
, val
, size
);
54 const MemoryRegionOps hppa_pci_conf1_ops
= {
55 .read
= bw_conf1_read
,
56 .write
= bw_conf1_write
,
57 .endianness
= DEVICE_BIG_ENDIAN
,
64 /* PCI/EISA Interrupt Acknowledge Cycle. */
66 static uint64_t iack_read(void *opaque
, hwaddr addr
, unsigned size
)
68 return pic_read_irq(isa_pic
);
71 static void special_write(void *opaque
, hwaddr addr
,
72 uint64_t val
, unsigned size
)
74 trace_hppa_pci_iack_write();
77 const MemoryRegionOps hppa_pci_iack_ops
= {
79 .write
= special_write
,
80 .endianness
= DEVICE_BIG_ENDIAN
,